*{
    padding: 0;
    margin: 0;
}
img{
    width: 100%;
    height: 100%;
    vertical-align: middle;
}
li{
    list-style: none;
}
body{
    width: 100%; 
    min-width:375px;
    max-width: 750px;
    margin: 0 auto;
}
.clearfix:after{
    content: "";
    height: 0;
    display: block;
    visibility: hidden;
    clear: both;
}
.center{
    width: 100%;
    background-color: #f1e7e7;
    
}

.wrap{
    width: 95%;
    margin: auto;
    /* background-color: #ccc; */
}
header{
    width: 100%;
    height: 80px;
    line-height: 80px;
    background-color: rgb(247, 231, 231);
    box-shadow: 0px 2px 1px #fff;
}

nav{
    
    width: 100%;
    height: 45px;
    /* margin: 10px 0; */
    line-height: 45px;
}

main{
    width: 100%;
    /* background-color: #c4c4c4; */
    margin-bottom: 40px;
    overflow: hidden;
}
aside{
    float: left;
    width: 20%;
    height: 600px;
    background-color: lightcyan;
}
article{
    float: right;
    width: 78%;
    height: 600px;
}
footer{
    width: 100%;
    height: 100px;
    background-color: #ccc;
}

.header .logo{
    float: left;
    width: 15%;
    height: 60px;  
}
.header ul {
  float: left;
   /* width: 40%; */
   margin-left: 5%;
   text-align: center;
}
.header ul li{
    float: left;
    padding: 0 0.4em;
}

.header .search{
    float:right;
    width: 30%;

}
.search input{
    width: 100%;
    line-height: 40px;
    border-radius: 5px;
    outline: none;
    border-color: #ccc;
}

/* nav ul{
    overflow: hidden;
} */
nav ul li{
    float: right;
    padding:0 15px;
}
article section .banner{
    height: 300px;
}
article section ul{
    margin-top: 10px;
}
article section ul li{
    float: left;
    width: 48%;
    height: 120px;
   padding-left: 5px;
   padding-top: 10px;
}
aside  ul{
    margin-top: 50px;
}
aside ul li{
    width: 100%;
    height: 30px;
    line-height: 30px;
    text-align: center;
    padding: 10px 0;
    border-top: 1px  solid lightgoldenrodyellow;
}
aside ul li:hover{
    background-color: lightskyblue;
    color: red;
}
.active{
    background-color: lightskyblue;
    color: red;
}